This is ep engine side of fix for CBSE-444
Integrated in github-ep-engine-2-0 #481 (See http://qa.hq.northscale.net/job/github-ep-engine-2-0/481/)
MB-7830: Zero out key_stats buffer in observe logic (Revision 4ac9126006ac20da260f2da331f4382cb62860e5)
Result = SUCCESS
Mike Wiederhold :
pls verify in current 2.0.2 build.
ok to close, difficult to test and not really important to test (per mike).